python all files in directory code example

Example 1: python read a directory to get all files in sub folders

import os

path ="C:/workspace/python"
#we shall store all the file names in this list
filelist = []

for root, dirs, files in os.walk(path):
	for file in files:
        #append the file name to the list
		filelist.append(os.path.join(root,file))

#print all the file names
for name in filelist:
    print(name)

Example 2: python list files in current directory

import os

files = os.listdir('.')
print(files)
for file in files:
  # do something

Example 3: how to search for a specific file extension with python

import glob, os
os.chdir("/mydir")
for file in glob.glob("*.txt"):
    print(file)

Example 4: python list all files in directory

from os import listdir
from os.path import isfile, join
onlyfiles = [f for f in listdir(mypath) if isfile(join(mypath, f))]

Example 5: python script to read all file names in a folder

import os

def get_filepaths(directory):
    """
    This function will generate the file names in a directory 
    tree by walking the tree either top-down or bottom-up. For each 
    directory in the tree rooted at directory top (including top itself), 
    it yields a 3-tuple (dirpath, dirnames, filenames).
    """
    file_paths = []  # List which will store all of the full filepaths.

    # Walk the tree.
    for root, directories, files in os.walk(directory):
        for filename in files:
            # Join the two strings in order to form the full filepath.
            filepath = os.path.join(root, filename)
            file_paths.append(filepath)  # Add it to the list.

    return file_paths  # Self-explanatory.

# Run the above function and store its results in a variable.   
full_file_paths = get_filepaths("/Users/johnny/Desktop/TEST")

Example 6: os list all files in one dir

import glob
print(glob.glob("/home/adam/*.txt"))